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Finding the Fourth Proportional to 143,263.89, 197,710.88 and 79,602.75

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Solution

The fourth proportional to 143,263.89, 197,710.88 and 79,602.75 is: 109,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,263.89 : 197,710.88 = 79,602.75 : x
  2. Step 2: Convert to fraction form
    143,263.89/197,710.88 = 79,602.75/x
  3. Step 3: Cross multiply
    143,263.89x = 197,710.88 × 79,602.75
  4. Step 4: Simplify right side
    143,263.89x = 15,738,329,354.91
  5. Step 5: Solve for x
    x = 15,738,329,354.91/143,263.89
  6. Step 6: Final answer
    x = 109,855.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.